html{
    background-color: #fff;
    text-align: center;
    font-size: 10px;

}
body{
    margin: 0;
    font-size: 2rem;/*相对大小*/
    display: flex;/*弹性布局*/
    justify-content: center;
    align-items: center;
    min-height: 100vh;/*可视高度*/
}
.clock{
    width: 30rem;
    height: 30rem;
    border: 7px solid #ffebdb;
    border-radius: 50%;
    box-shadow: -4px -4px 10px rgba(67,67,67,0.1),
    inset 4px 4px 10px rgba(168,145,128,0.6),
    inset -4px -4px 10px rgba(201,175,155,0.2),
     4px 4px 10px rgba(168,145,128,0.65);/*对边框上右下左设计颜色（最后一个）透明度*/
     background-image: url('https://every-tuesday.com/wp-content/themes/et2017_sage/assets/images/teachable/watercolor-florals/video-corner-a.jpg');
   background-size: 111%;
   padding: 2rem; 
}
.outer-clock-face{
position: relative;
width: 100%;
height: 99%;
border-radius: 100%;
overflow: hidden;
}
.outer-clock-face::before,
.outer-clock-face::after,
.marking{
    content: '';
    position: absolute;
    width: 10px;
    height:100% ;
    background: #596235;
     z-index: 0;
    left: 49%;
    border-radius: 8px;
}
.outer-clock-face::after{
    transform: rotate(90deg);
}
.marking{
    width: 3px;
}
.marking-one{
    transform: rotate(30deg);
}
.marking-two{
    transform: rotate(60deg);
}
.marking-three{
    transform: rotate(120deg);
}
.marking-four{
    transform: rotate(150deg);
}
.inner-clock-face{
    position: absolute;
    top:10%;
    left: 11%;
    width: 80%;
    height: 80%;
    background: #ffebdb;
    border-radius: 100%;
    z-index: 1;
    background-image: url('https://every-tuesday.com/wp-content/themes/et2017_sage/assets/images/teachable/watercolor-florals/video-corner-a.jpg');
background-size: 126%;
}
.inner-clock-face::after{
    content: "";
    position: absolute;
    top:50%;
    right: 50%;
    width: 16px;
    height: 16px;
    border-radius: 18px;
    background: #4d4b63;
     z-index: 13; 
     margin-right: -9px; 
    margin-top: -6px;
}
.hand{
    width: 50%;
    height: 6px;
    background: #b03715;
    position: absolute;
    top:50%;
right: 50%;
border-radius: 6px;
 transform: rotate(90deg); 
transform-origin: 100%;/*旋转基点。旋转轴，绕最右边旋转*/
}
.hour-hand{
    width: 30%;
    z-index: 3;
}
.min-hand{
width: 40%;
height: 3px;
z-index: 10;
}
.second-hand{
background: #b3b3b3;
width: 45%;
height: 2px;
z-index: 11;
}